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From: Jeff Law <>
To: Palmer Dabbelt <>,
Subject: Re: [PATCH] invoke: RISC-V's -march doesn't take ISA strings
Date: Wed, 16 Nov 2022 21:27:50 -0700	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 11/7/22 11:58, Palmer Dabbelt wrote:
> The docs say we take ISA strings, but that's never really been the case:
> at a bare minimum we've required lower case strings, but there's
> generally been some subtle differences as well in things like version
> handling and such.  We talked about removing the lower case requirement
> in the last GNU toolchain meeting and we've always called other
> differences just bugs.  We don't have profile support yet, but based on
> the discussions on the RISC-V lists it looks like we're going to have
> some differences there as well.
> So let's just stop pretending these are ISA strings.  That's been a
> headache for years now, if we're meant to just be ISA-string-like here
> then we don't have to worry about all these long-tail ISA string parsing
> issues.
> Link:
> gcc/ChangeLog
> 	doc/invoke.texi (RISC-V): -march doesn't take ISA strings.

No strong opinions, mostly because I don't have any of the history.  I'm 
happy to go along with the consensus here.


      parent reply	other threads:[~2022-11-17  4:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-07 18:58 Palmer Dabbelt
2022-11-08 13:40 ` Christoph Müllner
2022-11-09  3:00   ` Palmer Dabbelt
2022-11-09  9:52     ` Christoph Müllner
2022-11-18  4:29       ` Palmer Dabbelt
2022-11-09 10:19     ` Philipp Tomsich
2022-11-17  4:27 ` Jeff Law [this message]

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